Finding the Third Proportional to 60,540 and 140,685

Step by Step Solution

1. Step 1: Write the proportion equation
   60,540 : 140,685 = 140,685 : x
2. Step 2: Convert to fraction form
   60,540/140,685 = 140,685/x
3. Step 3: Cross multiply
   60,540x = 140,685 × 140,685
4. Step 4: Simplify right side
   60,540x = 19,792,269,225
5. Step 5: Solve for x
   x = 19,792,269,225/60,540
6. Step 6: Final answer
   x = 326,928.79